DCD-MGS-US Alpha Mimic 12x US-type Ground SignalALPHA MIMIC 12x US type Ground Signal A pack of 12 x 2 lamp plug and play signals in HO scale, complete with control board and accessories. The DCD MGS US is a simple design 2 lamp ground signal the prototype for this signal dates from pre WW2 but has not changed significantly since then. It is commonly used in the USA and other places outside Europe and the UK. It is, because of this, made in HO scale. In addition to its world wide prototype use, it